This repository has been archived on 2023-10-09. You can view files and clone it. You cannot open issues or pull requests or push a commit.

Hans Goudey 63a44e29ac Mesh: Parallelize extraction of UV maps ...

Since UVs are now stored as 2D vectors in meshes, they can be copied
directly to the vertex buffers. Somewhat surprisingly, multithreading
the copying into the vertex buffer provides a good speedup-- on a CPU
with many cores at least.

Here is a test uploading two UV maps created in geometry
nodes with a 1 million quad mesh, with a Ryzen 7950x:
|         | Before  | After  | Speedup |
| ------- | ------- | ------ | ------- |
| Average | 24.3 ms | 7.5 ms | 3.2x    |
| Min     | 17.6 ms | 7.0 ms | 2.5x    |

I added the copying utilities to the array utils header, since the
need for them has come up in a few different places already, and the
existing function with a selection argument didn't make sense here.

Pull Request: blender/blender#105793

2023-03-19 16:18:19 +01:00

1.7 KiB

Raw Blame History

View Raw